Columbia is located along the Susquehanna River in South-central Pennsylvania. We are midway between the cities of Lancaster and York (about 10 miles from each). We are 28 miles south of Harrisburg, the Pa. state capital.
We are 80 miles west of Philadelphia and 65 miles north of Baltimore, Md. The main roads in the greater Columbia area are U.S. 30, PA 441, PA 999, PA 462 and PA 23. The map above is courtesy of Yahoo! Maps.